Turboes and engine management

[Thunderbolt]

Suppose you want to fit a bigger turbo (or higher flowing). It is obviously benefitial to run aftermarket management on it, be it a full replacement computer or something like a Power FC. Question is though, can you get away with running a stock computer? Would resetting the stock computer have any advantage? If you do run a stock computer with a bigger turbo, would you lose out on a lot of power?

[Clint32]

The computer on a RB20 can be reprogrammed to suit the new turbo and other mods, if you dont you will probably have problems and only run a small amount off boost.